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12855279135 = 351693506213
BaseRepresentation
bin10111111100011101…
…11111111000011111
31020011220110211202110
423332032333320133
5202311422413020
65523341125103
7633365032626
oct137616777037
936156424673
1012855279135
1154a7519536
1225a9259793
13129b40095a
1489d4566bd
155038b68e0
hex2fe3bfe1f

12855279135 has 16 divisors (see below), whose sum is σ = 20580636384. Its totient is φ = 6852085632.

The previous prime is 12855279061. The next prime is 12855279137. The reversal of 12855279135 is 53197255821.

It is not a de Polignac number, because 12855279135 - 28 = 12855278879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12855279137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227712 + ... + 278501.

It is an arithmetic number, because the mean of its divisors is an integer number (1286289774).

Almost surely, 212855279135 is an apocalyptic number.

12855279135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12855279135 is a deficient number, since it is larger than the sum of its proper divisors (7725357249).

12855279135 is a wasteful number, since it uses less digits than its factorization.

12855279135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507914.

The product of its digits is 756000, while the sum is 48.

The spelling of 12855279135 in words is "twelve billion, eight hundred fifty-five million, two hundred seventy-nine thousand, one hundred thirty-five".

Divisors: 1 3 5 15 1693 5079 8465 25395 506213 1518639 2531065 7593195 857018609 2571055827 4285093045 12855279135